This could cause a few fights between couples or friends. Or it could be a great way to keep that beer belly at bay. The Beer Tracker bottle opener counts the number of bottles of brew you pop open. That way you know exactly who t...This could cause a few fights between couples or friends. Or it could be a great way to keep that beer belly at bay. The Beer Tracker bottle opener counts the number of bottles of brew you pop open. That way you know exactly who to blame (yourself) the following morning.